html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "Microsoft Yahei", "simhei";
  background-color: #fff;
  -webkit-overflow-scrolling: touch;
}
ul,
li {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  vertical-align: baseline;
  font-size: 100%;
}
a {
  color: #000;
  text-decoration: none;
}
h1,
h2,
h3,
h4,
h5,
h6,
p {
  padding: 0;
  margin: 0;
  font-size: 100%;
  font-weight: normal;
}
img {
  display: block;
}
/*----------颜色----------start*/
/*----------颜色----------end*/
.row {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
}
.col {
  display: block;
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -moz-box-flex: 1;
  -moz-flex: 1;
  -ms-flex: 1;
  flex: 1;
  width: 100%;
}
.relative {
  position: relative;
}
.absolute {
  position: absolute;
}
.w-100 {
  width: 100%;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
.first-title {
  position: relative;
  text-align: center;
}
.first-title img {
  width: 100%;
}
.first-title h3 {
  position: absolute;
  left: 0;
  top: .9rem;
  width: 100%;
  font-size: 18px;
  color: #fff;
}
[data-dpr="2"] .first-title h3 {
  font-size: 35px;
}
[data-dpr="3"] .first-title h3 {
  font-size: 53px;
}
.first-title a {
  position: absolute;
  left: 50%;
  top: 1.3rem;
  width: 1.3rem;
  margin-left: -0.65rem;
  font-size: 14px;
  line-height: .3rem;
  color: #fff;
  border: 1px solid #8c9fb1;
}
[data-dpr="2"] .first-title a {
  font-size: 28px;
}
[data-dpr="3"] .first-title a {
  font-size: 42px;
}
.first-header {
  position: relative;
  text-align: center;
}
.first-header img {
  width: 100%;
}
.first-header h2 {
  position: absolute;
  left: 0;
  top: .3rem;
  width: 100%;
  font-size: 24px;
  color: #2a2a2a;
}
[data-dpr="2"] .first-header h2 {
  font-size: 48px;
}
[data-dpr="3"] .first-header h2 {
  font-size: 72px;
}
.first-header h2 span {
  color: #008eff;
}
.first-header h5 {
  position: absolute;
  left: 0;
  top: .6rem;
  width: 100%;
  font-size: 10px;
  color: #666;
}
[data-dpr="2"] .first-header h5 {
  font-size: 20px;
}
[data-dpr="3"] .first-header h5 {
  font-size: 30px;
}
.first-product {
  padding: .25rem 0 .35rem 0;
}
.first-product .col {
  padding: 0 .08rem !important;
  text-align: center;
}
.first-product img {
  width: 46%;
  margin: 0 auto;
}
.first-product h3 {
  margin-top: .05rem;
  font-size: 14px;
  color: #000;
}
[data-dpr="2"] .first-product h3 {
  font-size: 28px;
}
[data-dpr="3"] .first-product h3 {
  font-size: 42px;
}
.first-product .line-area {
  width: .2rem;
  height: .01rem;
  margin: .08rem auto;
  background-color: #cbcbcb;
}
.first-product p {
  text-align: left;
  font-size: 11px;
  color: #666;
}
[data-dpr="2"] .first-product p {
  font-size: 22px;
}
[data-dpr="3"] .first-product p {
  font-size: 33px;
}
.first-product .first-button-area {
  margin-top: .2rem;
  text-align: center;
  font-size: 14px;
  color: #121212;
  line-height: .3rem;
}
[data-dpr="2"] .first-product .first-button-area {
  font-size: 28px;
}
[data-dpr="3"] .first-product .first-button-area {
  font-size: 42px;
}
.first-product .first-button-area .button-item {
  display: inline-block;
  width: 1.42rem;
  border: 1px solid #ddd;
  background: url(../img/aboutUs/introduce_arrow.png) no-repeat 80% center;
  background-size: .05rem;
}
.first-product .first-button-area .button-item span {
  color: #808080;
}
.first-content {
  position: relative;
}
.first-content img {
  width: 100%;
}
.first-content .content-info {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: .15rem .09rem;
  box-sizing: border-box;
}
.first-content .content-info .col {
  padding: 0 .05rem;
}
.first-content .content-info .col .info-item {
  padding-bottom: .2rem;
  margin-bottom: .1rem;
  text-align: center;
  background-color: #fff;
}
.first-content .content-info .col .info-item.bottom {
  margin-bottom: 0;
}
.first-content .content-info .col .info-item img {
  width: 50%;
  margin: 0 auto;
}
.first-content .content-info .col .info-item h3 {
  margin-bottom: .1rem;
  font-size: 18px;
  color: #121212;
}
[data-dpr="2"] .first-content .content-info .col .info-item h3 {
  font-size: 35px;
}
[data-dpr="3"] .first-content .content-info .col .info-item h3 {
  font-size: 53px;
}
.first-content .content-info .col .info-item p {
  font-size: 11px;
  color: #666;
}
[data-dpr="2"] .first-content .content-info .col .info-item p {
  font-size: 22px;
}
[data-dpr="3"] .first-content .content-info .col .info-item p {
  font-size: 33px;
}
.first-content .content-info .col .info-item .info-button-area {
  margin-top: .2rem;
  text-align: center;
  font-size: 14px;
  color: #121212;
  line-height: .3rem;
}
[data-dpr="2"] .first-content .content-info .col .info-item .info-button-area {
  font-size: 28px;
}
[data-dpr="3"] .first-content .content-info .col .info-item .info-button-area {
  font-size: 42px;
}
.first-content .content-info .col .info-item .info-button-area .button-item {
  display: inline-block;
  width: 1.16rem;
  border: 1px solid #ddd;
  background: url(../img/aboutUs/introduce_arrow.png) no-repeat 88% center;
  background-size: .05rem;
}
.first-content .content-info .col .info-item .info-button-area .button-item span {
  color: #808080;
}
.first-content .text-more {
  position: absolute;
  left: 0;
  bottom: .8rem;
  width: 100%;
  font-size: 15px;
  color: #fff;
  text-align: center;
}
[data-dpr="2"] .first-content .text-more {
  font-size: 30px;
}
[data-dpr="3"] .first-content .text-more {
  font-size: 45px;
}
.first-content .text-example {
  position: absolute;
  left: 0;
  bottom: .6rem;
  width: 100%;
  font-size: 11px;
  color: #c2c2c2;
  text-align: center;
}
[data-dpr="2"] .first-content .text-example {
  font-size: 22px;
}
[data-dpr="3"] .first-content .text-example {
  font-size: 33px;
}
.first-content .text-forward {
  position: absolute;
  left: 0;
  bottom: .3rem;
  width: 100%;
  font-size: 15px;
  color: #fff;
  text-align: center;
}
[data-dpr="2"] .first-content .text-forward {
  font-size: 30px;
}
[data-dpr="3"] .first-content .text-forward {
  font-size: 45px;
}
